KENNETH KASSCHAU
Engineers in Gaithersburg, MD
License number
Pennsylvania PE009159E
Category
Engineers
Type
Professional Engineer
Address
Address
2
Gaithersburg, MD 20878
Pennsylvania
Pennsylvania
Professional information
Through-Hub Exhaust Propeller Assembly
US Patent:
4511339, Apr 16, 1985
Filed:
Jun 14, 1983
Appl. No.:
6/504127
Inventors:
Kenneth Kasschau - Gaithersburg MD
International Classification:
B63H 512
US Classification:
440 89
Abstract:
A boating propeller for controlling the discharge of engine exhaust gases from the central hub of a boating motor unit by making provision for confining said gases to the inner most fraction of the structure (that within the shroud) and discharging it downstream of the propeller when operating the unit in either the forward or astern mode of operation.
Propeller Exhaust Hub And Shroud
US Patent:
4388070, Jun 14, 1983
Filed:
Dec 20, 1978
Appl. No.:
5/971551
Inventors:
Kenneth Kasschau - Gaithersburg MD
International Classification:
B63H 120
US Classification:
440 89
Abstract:
A propeller for controlling the discharge of gases and cooling water exhausting from the central hub of an outboard motor unit comprising a cylindrical shroud surrounding the propeller hub to confine the exhaust to the inner most part of the blades and discharge it downstream of the propeller when operating the unit in the forward or reverse mode. Several attachments to this shroud which enhance the discharge performance of the propeller are disclosed. An alternate embodiment comprises a shroud which may be attached to a conventional through-hub marine propulsion device to channel the exhaust away from the propeller area.